A source said: "Kelly has kept quite guarded over the details of her past heartbreak and now, finally, she's ready to share her feelings with the world. She's in a really happy place with Danny and is planning to openly declare her love for him and their hopes for their future.

"Behind the scenes Kelly has had quite a struggle over the years. Under pressure to look good at all times, some industry bosses have even 'gently suggested' she diet. But Kelly's not one to kowtow to media pressure."

Kelly is expected to write about her miscarriage with Thom's baby in 2011, what her career in the modelling world has been like, and how she gets her famous curves.